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Http error codes

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  • Error or Status Code Description

    100 Series

    Informational - These status codes indicate a provisional response. The client should be prepared to receive one or more 1xx responses before receiving a regular response.

    100

    Continue.

    101

    Switching protocols.

    200 Series

    Success - This class of status codes indicates that the server successfully accepted the client request.

    200

    The client request has succeeded. This status code indicates that the Web server has successfully processed the request.

    201

    Created.

    202

    Accepted.

    203

    Non-authoritative information.

    204

    No content.

    205

    Reset content.

    206

    Partial content.

    300 Series

    Redirection - The client browser must take more action to fulfill the request. For example, the browser may have to request a different page on the server or repeat the request by using a proxy server.

    302

    Object moved.

    304

    Not modified. The client requests a document that is already in its cache and the document has not been modified since it was cached. The client uses the cached copy of the document, instead of downloading it from the server

    307

    Temporary redirect.

    400 Series

    Client Error - An error occurs, and the client appears to be at fault. For example, the client may request a page that does not exist, or the client may not provide valid authentication information.

    400

    Bad request.

    401

    Access denied.

    401.1

    Logon failed. The logon attempt is unsuccessful, probably because of a user name or password that is not valid.

    401.2

    Logon failed due to server configuration.

    401.3

    Unauthorized due to ACL on resource. This indicates a problem with NTFS permissions. This error may occur even if the permissions are correct for the file that you are trying to access. For example, you see this error if the IUSR account does not have access to the C:\Winnt\System32\Inetsrv directory.

    401.4

    Authorization failed by filter.

    401.5

    Authorization failed by ISAPI/CGI application.

    401.7

    Access denied by URL authorization policy on the Web server. This error code is specific to IIS 6.0.

    403

    Forbidden.

    403.1

    Execute access forbidden. The following are two common causes of this error message:

    • You do not have enough Execute permissions. For example, you may receive this error message if you try to access an ASP page in a directory where permissions are set to None, or you try to execute a CGI script in a directory with Scripts Only permissions.
    • The script mapping for the file type that you are trying to execute is not set up to recognize the verb that you are using (for example, GET or POST).

    403.2

    Read access forbidden. Verify that you have Read access to the directory. Also, if you are using a default document, verify that the document exists.

    403.3

    Write access forbidden. Verify that you have Write access to the directory

    403.4

    SSL required. Use HTTPS instead of HTTP to access the page.

    403.5

    SSL 128 required.

    403.6

    IP address rejected.

    403.7

    Client certificate required. You do not have a valid client certificate installed

    403.8

    Site access denied.

    403.9

    Too many users. The number of users who are connected to the server exceeds the connection limit.

    403.10

    Invalid configuration.

    403.11

    Password change.

    403.12

    Mapper denied access. The page that you want to access requires a client certificate, but the user ID that is mapped to your client certificate has been denied access to the file.

    403.13

    Client certificate revoked.

    403.14

    Directory listing denied.

    403.15

    Client Access Licenses exceeded.

    403.16

    Client certificate is untrusted or invalid.

    403.17

    Client certificate has expired or is not yet valid.

    403.18

    Cannot execute requested URL in the current application pool. This error code is specific to IIS 6.0.

    403.19

    Cannot execute CGIs for the client in this application pool. This error code is specific to IIS 6.0.

    403.20

    Passport logon failed. This error code is specific to IIS 6.0.

    404

    Not found. This error may occur if the file that you are trying to access has been moved or deleted.

    404.0

    File or directory not found.

    404.1

    Web site not accessible on the requested port.

    404.2

    Web service extension lockdown policy prevents this request.

    404.3

    MIME map policy prevents this request.

    405

    HTTP verb used to access this page is not allowed (method not allowed).

    406

    Client browser does not accept the MIME type of the requested page.

    407

    Proxy authentication required.

    412

    Precondition failed.

    413

    Request entity too large.

    414

    Request-URL too long.

    415

    Unsupported media type.

    416

    Requested range not satisfiable.

    417

    Execution failed.

    423

    Locked error.

    500 Series

    Server Error - The server cannot complete the request because it encounters an error.

    500

    Internal server error. You see this error message for a wide variety of server-side errors.

    500.12

    Application is busy restarting on the Web server. Indicates that you tried to load an ASP page while IIS was in the process of restarting the application. This message should disappear when you refresh the page. If you refresh the page and the message appears again, it may be caused by antivirus software that is scanning your Global.asa file.

    500.13

    Web server is too busy.

    500.15

    Direct requests for Global.asa are not allowed.

    500.16

    UNC authorization credentials incorrect. This error code is specific to IIS 6.0.

    500.18

    URL authorization store cannot be opened. This error code is specific to IIS 6.0.

    500.100

    Internal ASP error. You receive this error message when you try to load an ASP page that has errors in the code.

    501

    Header values specify a configuration that is not implemented.

    502

    Bad Gateway. Web server received an invalid response while acting as a gateway or proxy. You receive this error message when you try to run a CGI script that does not return a valid set of HTTP headers.

    502.1

    CGI application timeout.

    502.2

    Error in CGI application.

    503

    Service unavailable. This error code is specific to IIS 6.0.

    504

    Gateway timeout.

    505

    HTTP version not supported.

  • rickR rick moved this topic from File assistance | Discussion on

FreeBSD Notes
  • Unable to negotiate with 10.10.1.35 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss

    While attempting ssh this error is generally due to mismatched versions of ssh, where an up to date version is attempting to access an older version

    Add the following to your command :

    The proper way:

    ssh -o KexAlgorithms=diffie-hellman-group14-sha1 -oHostKeyAlgorithms=+ssh-dss 10.10.1.35

    The cheap way:

    Example :

    ssh -oHostKeyAlgorithms=+ssh-dss 10.10.1.35

    or ssh -oHostKeyAlgorithms=+ssh-dss user@10.10.1.35

    This can be added to the ~/.ssh/config file

    Host my-server HostName 10.10.1.35 HostKeyAlgorithms=+ssh-dss
    read more

  • Locate hard drive and get information

    ls -l /sys/block | grep sd.

    Output:

    lrwxrwxrwx 1 root root 0 Jun 22 06:28 sda -> ../devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdb -> ../devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sdb lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdc -> ../devices/pci0000:00/0000:00:1f.2/ata3/host2/target2:0:0/2:0:0:0/block/sdc lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdd -> ../devices/pci0000:00/0000:00:1f.2/ata4/host3/target3:0:0/3:0:0:0/block/sdd

    Or for a more detailed view

    strace -e trace=open lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 0 3.6T 0 disk ├─data--2-data--2_tmeta 252:3 0 15.9G 0 lvm │ └─data--2-data--2-tpool 252:9 0 3.6T 0 lvm │ ├─data--2-data--2 252:10 0 3.6T 1 lvm │ ├─data--2-vm--101--disk--0 252:11 0 8G 0 lvm │ ├─data--2-vm--103--disk--0 252:12 0 32G 0 lvm │ ├─data--2-vm--107--disk--0 252:13 0 500G 0 lvm │ └─data--2-vm--108--disk--0 252:20 0 100G 0 lvm └─data--2-data--2_tdata 252:6 0 3.6T 0 lvm └─data--2-data--2-tpool 252:9 0 3.6T 0 lvm ├─data--2-data--2 252:10 0 3.6T 1 lvm ├─data--2-vm--101--disk--0 252:11 0 8G 0 lvm ├─data--2-vm--103--disk--0 252:12 0 32G 0 lvm ├─data--2-vm--107--disk--0 252:13 0 500G 0 lvm └─data--2-vm--108--disk--0 252:20 0 100G 0 lvm sdb 8:16 0 698.6G 0 disk └─sdb1 8:17 0 698.6G 0 part /mnt/pve/backups sdc 8:32 0 3.6T 0 disk ├─vm--data-vm--data_tmeta 252:4 0 15.9G 0 lvm │ └─vm--data-vm--data-tpool 252:14 0 3.6T 0 lvm │ ├─vm--data-vm--data 252:15 0 3.6T 1 lvm │ ├─vm--data-vm--100--disk--0 252:16 0 270G 0 lvm │ ├─vm--data-vm--102--disk--0 252:17 0 100G 0 lvm │ ├─vm--data-vm--104--disk--0 252:18 0 25G 0 lvm │ └─vm--data-vm--106--disk--0 252:19 0 32G 0 lvm └─vm--data-vm--data_tdata 252:7 0 3.6T 0 lvm └─vm--data-vm--data-tpool 252:14 0 3.6T 0 lvm ├─vm--data-vm--data 252:15 0 3.6T 1 lvm ├─vm--data-vm--100--disk--0 252:16 0 270G 0 lvm ├─vm--data-vm--102--disk--0 252:17 0 100G 0 lvm ├─vm--data-vm--104--disk--0 252:18 0 25G 0 lvm └─vm--data-vm--106--disk--0 252:19 0 32G 0 lvm sdd 8:48 0 931.5G 0 disk ├─sdd1 8:49 0 1007K 0 part ├─sdd2 8:50 0 1G 0 part └─sdd3 8:51 0 930.5G 0 part ├─pve-swap 252:0 0 8G 0 lvm [SWAP] ├─pve-root 252:1 0 96G 0 lvm / ├─pve-data_tmeta 252:2 0 8.1G 0 lvm │ └─pve-data 252:8 0 794.3G 0 lvm └─pve-data_tdata 252:5 0 794.3G 0 lvm └─pve-data 252:8 0 794.3G 0 lvm +++ exited with 0 +++ cat /proc/partitions major minor #blocks name 8 0 3907018584 sda 8 16 732574584 sdb 8 17 732572672 sdb1 8 32 3907018584 sdc 8 48 976762584 sdd 8 49 1007 sdd1 8 50 1048576 sdd2 8 51 975712967 sdd3 252 0 8388608 dm-0 252 1 100663296 dm-1 252 2 8495104 dm-2 252 3 16650240 dm-3 252 4 16650240 dm-4 252 6 3873329152 dm-6 252 5 832888832 dm-5 252 7 3873329152 dm-7 252 8 832888832 dm-8 252 9 3873329152 dm-9 252 10 3873329152 dm-10 252 11 8388608 dm-11 252 12 33554432 dm-12 252 13 524288000 dm-13 252 14 3873329152 dm-14 252 15 3873329152 dm-15 252 16 283115520 dm-16 252 17 104857600 dm-17 252 18 26214400 dm-18 252 19 33554432 dm-19 252 20 104857600 dm-20

    Locate drive by serial and model information

    hdparm -i /dev/sda /dev/sda: Model=WDC WD4000FYYZ-05UL1B0, FwRev=00.0NS05, SerialNo=WD-WCC132262513 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=off CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=7814037168 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 AdvancedPM=yes: unknown setting WriteCache=disabled Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7 * signifies the current active mode
    read more

  • Screen recording can use webm as their format, it can be more simple to use a gif to embed into a website or forum, than adding scripts to host different video format.

    In this case I grabbed a screen record of the progress for writing zeros to a hard drive with dd

    Use ffmpeg to convert webm to gif:

    First create a pallet:

    Move into the directory which the webm is located, or type in the path

    Where ‘dd.webm’ is the screen recording

    ffmpeg -y -i dd.webm -vf palettegen palette.png

    Output:

    dd-ffmpeg.png

    Then convert the webm to gif:

    ffmpeg -y -i dd.webm -i palette.png -filter_complex paletteuse -r 10 dd.gif

    dd-webm-2.png

    This is what I ended up with, looks like any image of any alien on the interwebz, as if shot through a potato, some tweaking of the command is in my future. None the less.

    dd.gif

    read more

  • Write zeros to all sectors

    Use the command ‘lsblk’ to find the drive you wish to erase

    I’m using ‘dd’ to erase things

    In this case I’m torching sdb

    Only use status=progress if you care it’s not necessary

    dd if=/dev/zero of=/dev/sdb bs=12M status=progress

    dd.gif

    read more

  • Remove old kernel images that are cluttering the system

    zstd-no-space-error.png

    Most of these errors are due to low or not enough space left in the root partition.

    If you are using a Debian flavor:

    sudo apt-get autoremove --purge

    zstd-error.png

    Inform grub whenever an old kernel is removed:

    update-grub

    update-grub.png

    Remove the un-used kernel config files:

    These will be the files pre cursed as ‘rc’ where installed kernels use ‘ii’

    … As well as files no longer used or required due to dependencies

    This command will detect, print, and remove left over cruft from previously installed packages or scripts, that have been removed or updated.

    sudo dpkg --purge $(dpkg -l | awk '/^rc/{print $2}')

    purge.png

    You can re-run the following to view the installed kernel(s):

    dpkg --list | grep linux-image

    installed-kernels.png

    read more